Narrow Linewidth Laser

The PureSpectrum™ NLL is a compact, low-noise distributed feedback (DFB) laser ideal for a variety of the most demanding optical sensing applications. The laser and its control electronics are integrated into a single module that uses precision feedback monitoring to provide ultra low-noise performance and superior wavelength stability. The built-in, sharp-edged frequency discriminator significantly reduces linewidth while maintaining single-mode operation across the full operating temperature range. The module also offers fast frequency tuning, which enables frequency-modulated continuous-wave (FMCW) sensing.

TeraXion developed the PureSpectrum™ NLL laser to combine the reliability of semiconductor diodes and the performance of a low-noise, narrow linewidth laser into a compact package. The NLL is simple to integrate into optical sensing devices for applications such as LIDAR, distributed sensing and RF over fiber. It is also ideal as a seed laser.